Question

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Which statement can be combined with its converse to form a true biconditional?

If an angle is a straight angle, then its sides are opposite rays.
If the measure of an angle is 30, then it is an acute angle.
If two lines intersect, then the two lines are not skew.
If a ray is the perpendicular bisector of a segment, then the ray divides the segment into two congruent segments.

Answer 1

If the measure of an angles is 30, then it is an acute angle.

Answer 2

why is that

Answer 3

Think about it. "Biconditional"

Answer 4

thanks